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Journal Article Open Access

Evaluating Electrolytic Capacitors Specified for Audio Use: A Comparative Analysis of Electrical Measure- ments and Capacitor Distortion Products in Line Level Interstage Coupling Applications

Authors: Anderson, Ian Z.

Journal of the Audio Engineering Society · Volume 68 · Issue 7/8 · pp. 559–567 · July 2020

Abstract

This paper provides a number of comparative, quantitative evaluations of 10 different makes and models of electrolytic capacitors. Models range from expensive parts specified for use in audio circuits to low-cost general-purpose parts. The datasets comprise out-of-circuit electronic measurements, total harmonic distortion (THD) fast Fourier transform (FFT) sweeps, and cumulative distortion products resulting from 31-tone stimulus performed on the components in a circuit designed to emulate a typical line-level audio recording and mixing console. Results are examined in an effort to identify any measurable properties that may distinguish "audio capacitors" as outliers from their general-purpose counterparts.

Details

Publication
Journal of the Audio Engineering Society
Volume
68
Issue
7/8
Pages
559–567
Publication date
July 6, 2020
Affiliation
Kent State University at Stark, North Canton, Ohio (See document for exact affiliation information.)
Type
Journal Article